Quasars tagged posts

Astronomers have found a striking link between the amount of dust surrounding a supermassive black hole and the strength of the radio emission produced in extremely bright galaxies. The findings are published in the Monthly Notices of the Royal Astronomical Society.

The team of international astronomers, led by Newcastle University and Durham University, UK, used new data from the Dark Energy Spectroscopic Instrument (DESI), which is conducting a five year survey of large scale structure in the universe that will include optical spectra for ~3 million quasars; extremely bright galaxies powered by supermassive black holes...

Cracking a mystery of massive black holes and quasars with supercomputer simulations. At the center of galaxies, like our own Milky Way, lie massive black holes surrounded by spinning gas...

The fifth generation of the Sloan Digital Sky Survey is collecting data about our universe for Vanderbilt University astronomers and other project members to use to explore the formation of distant galaxies and supermassive black holes, and to map the Milky Way.

The SDSS-V will make full use of existing satellites, including NASA’s Transiting Exoplanet Survey Satellite mission, to lead to new discoveries. Keivan Stassun, Stevenson Professor of Physics and Astronomy, is co-investigator of NASA TESS, which enabled the discovery of a newly formed exoplanet in June 2020. That discovery boosted the potential for a joint effort with SDSS data.

“SDSS-V will magnify the exoplanet discoveries from TESS, both retrospectively and prospectively,” Stassun said...

A galactic bar is the approximately linear structure of stars and gas that stretches across the inner regions of some galaxies. The bar stretches from one inner spiral arm, across the nuclear region, to an arm on the other side...